#1 Best Catholic Schools in Naugatuck Valley County, CT
Holy Trinity Catholic Academy
Diocesan school · Grades Pre-K–8
Smaller classes than 82% of Catholic schools in Connecticut
Shelton, CT
A+Overall grade120 students9 students per teacher
2026 lists
Best Catholic Schools in Naugatuck Valley County, CT
The highest-graded schools of this kind in Naugatuck Valley County, CT. Top 10 of 10 schools.
#2 Best Catholic Schools in Naugatuck Valley County, CT
St. Matthew School
Diocesan school · Grades Pre-K–8
The smallest classes of any Catholic school in Bristol
Bristol, CT
A+Overall grade142 students10 students per teacher
#3 Best Catholic Schools in Naugatuck Valley County, CT
St. Mary Magdalen School
Parish school · Grades Pre-K–4
Smaller classes than 80% of Catholic schools in Connecticut
Oakville, CT
A+Overall grade137 students9 students per teacher
#4 Best Catholic Schools in Naugatuck Valley County, CT
St. Joseph School
Parish school · Grades Pre-K–8
Serving families in Bristol since at least 2011
Bristol, CT
AOverall grade171 students13 students per teacher
#5 Best Catholic Schools in Naugatuck Valley County, CT
Holy Cross High School
Independent Catholic school · Grades 9–12
Serving families in Waterbury since at least 2011
Waterbury, CT
B+Overall grade495 students13 students per teacher
#6 Best Catholic Schools in Naugatuck Valley County, CT
St. John's School
Parish school · Grades 5–8
One of 2 Catholic schools in Watertown
Watertown, CT
B+Overall grade101 students13 students per teacher
#7 Best Catholic Schools in Naugatuck Valley County, CT
Assumption School
Parish school · Grades Pre-K–8
Serving families in Ansonia since at least 2011
Ansonia, CT
B+Overall grade163 students14 students per teacher
#8 Best Catholic Schools in Naugatuck Valley County, CT
St. John the Evangelist School
Diocesan school · Grades 5–8
Serving families in Watertown since at least 2011
Watertown, CT
B+Overall grade101 students14 students per teacher
#9 Best Catholic Schools in Naugatuck Valley County, CT
Catholic Academy of Waterbury
Diocesan school · Grades Pre-K–8
Serving families in Waterbury since at least 2011
Waterbury, CT
B+Overall grade171 students16 students per teacher
#10 Best Catholic Schools in Naugatuck Valley County, CT
St. Paul Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Bristol
Bristol, CT
B-Overall grade388 students14 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.